So should 243 be divided by 4

Find the missing factor. 7s2 + 25s + 12 = (s + 3)( ).

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?